Boston Marathon suspect cornered in backyard boat

A police officer reacts to news of the arrest of one of the Boston Marathon bombing suspects, Friday, April 19, 2013, in Boston. Boston Marathon bombing suspect Dzhokhar Tsarnaev was captured in Watertown, Mass. The 19-year-old college student wanted in the bombings was taken into custody Friday evening after a manhunt that left the city virtually paralyzed and his older brother and accomplice dead. (AP Photo/Julio Cortez)
— AP

A police officer reacts to news of the arrest of one of the Boston Marathon bombing suspects, Friday, April 19, 2013, in Boston. Boston Marathon bombing suspect Dzhokhar Tsarnaev was captured in Watertown, Mass. The 19-year-old college student wanted in the bombings was taken into custody Friday evening after a manhunt that left the city virtually paralyzed and his older brother and accomplice dead. (AP Photo/Julio Cortez)
/ AP

The violent endgame unfolded just a day after the FBI released surveillance-camera images of two young men suspected of planting the pressure-cooker explosives at the marathon's finish line, an attack that put the nation on edge for the week.

Watertown residents who had been told in the morning to stay inside behind locked doors poured out of their homes and lined the streets to cheer police vehicles as they rolled away from the scene.

Celebratory bells rang from a church tower. Teenagers waved American flags. Drivers honked. Every time an emergency vehicle went by, people cheered loudly.

"They finally caught the jerk," said nurse Cindy Boyle. "It was scary. It was tense."

Police said three other people were taken into custody for questioning at an off-campus housing complex at the University of the Massachusetts at Dartmouth where the younger man may have lived.

"Tonight, our family applauds the entire law enforcement community for a job well done, and trust that our justice system will now do its job," said the family of 8-year-old Martin Richard, who died in the bombing.

The FBI was swamped with tips - 300,000 per minute - after the release of the surveillance-camera photos, but what role those played in the overnight clash was unclear. State Police spokesman Dave Procopio said police realized they were dealing with the bombing suspects based on what the two men told a carjacking victim during their night of crime.

The search by thousands of law enforcement officers all but shut down the Boston area for much of the day. Officials halted all mass transit, including Amtrak trains to New York, advised businesses not to open, and warned close to 1 million people in the entire city and some of its suburbs to unlock their doors only for uniformed police.

Around midday, the suspects' uncle, Ruslan Tsarni of Montgomery Village, Md., pleaded on television: "Dzhokhar, if you are alive, turn yourself in and ask for forgiveness."

Until the younger man's capture, it was looking like a grim day for police. As night fell, they announced that they were scaling back the hunt and lifting the stay-indoors order across the region because they had come up empty-handed.

But then the break came and within a couple of hours, the search was over. Dzhokhar Tsarnaev was captured about a mile from the site of the shootout that killed his brother.

A neighbor described how heavily armed police stormed by her window not long after the lockdown was lifted - the rapid report of gunshots left her huddled on the bathroom floor on top of her young son.

"I was just waiting for bullets to just start flying everywhere," Deanna Finn said.

When at last the gunfire died away and Dzhokhar Tsarnaev was taken from the neighborhood in an ambulance, an officer gave Finn a cheery thumbs-up.

"To see the look on his face, he was very, very happy, so that made me very, very happy," she said.

Authorities said the man dubbed Suspect No. 1 - the one in sunglasses and a dark baseball cap in the surveillance-camera pictures - was Tamerlan Tsarnaev, while Suspect No. 2, the one in a white baseball cap worn backward, was his younger brother.